From: Paul Handrigan <Paul.Handrigan@xxxxxxxxxx>
Add device tree bindings file for the cs35l34 8V boosted
class D amplifier.
Signed-off-by: Paul Handrigan <Paul.Handrigan@xxxxxxxxxx>
---
.../devicetree/bindings/sound/cs35l34.txt | 64 ++++++++++++++++++++++
1 file changed, 64 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/cs35l34.txt
diff --git a/Documentation/devicetree/bindings/sound/cs35l34.txt b/Documentation/devicetree/bindings/sound/cs35l34.txt
new file mode 100644
index 0000000..df62e77
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/cs35l34.txt
@@ -0,0 +1,64 @@
+CS35L34 Speaker Amplifier
+
+Required properties:
+
+ - compatible : "cirrus,cs35l34"
+
+ - reg : the I2C address of the device for I2C.
+
+ - VA-supply, VP-supply : power supplies for the device,
+ as covered in
+ Documentation/devicetree/bindings/regulator/regulator.txt.
+
+ - cirrus,boost-vtge : Boost Voltage Value. Configures the boost converter's
+ output voltage in mV. The range is from VP to 8V with increments of 100mV.
+
+ - cirrus,boost-ind: Inductor value for boost converter. The value is in nH
+ and they can be values of 1000nH, 1100nH, 1200nH, 1500nH, and 2200nH.
+
+Optional properties:
+
+ - reset-gpios: GPIO used to reset the amplifier.
+
+ - interrupt-parent : Specifies the phandle of the interrupt controller to
+ which the IRQs from CS35L34 are delivered to.
+ - interrupts : IRQ line info CS35L34.
+ (See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
+ for further information relating to interrupt properties)
+
+ - cirrus,boost-peak : Boost converter peak current limit in mA. The range
+ starts at 1200mA and goes to a maximum of 3840mA with increments of 80mA.
+ The default value is 2480mA.
+
+ - cirrus,i2s-sdinloc : ADSP SDIN I2S channel location. Indicates whether the
+ received mono data is in the left or right portion of the I2S frame
+ according to the AD0 pin or directly via this configuration.
+ 0x0 (Default) = Selected by AD0 input (if AD0 = LOW, use left channel),
+ 0x2 = Left,
+ 0x1 = Selected by the inversion of the AD0 input (if AD0 = LOW, use right
+ channel),
+ 0x3 = Right.
+
+ - cirrus,gain-zc-disable: Boolean property. If set, the gain change will take
+ effect without waiting for a zero cross.
+
+ - cirrus,tdm_rising_edge: Boolean property. If set, data is on the rising edge of
+ SCLK. Otherwise, data is on the falling edge of SCLK.
+
+
+Example:
+
+cs35l34: cs35l34@40 {
+ compatible = "cirrus,cs35l34";
+ reg = <0x40>;
+
+ interrupt-parent = <&gpio8>;
+ interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
+
+ reset-gpios = <&gpio 10 0>;
+
+ cirrus,boost-vtge = <8000>; /* 8V */
+ cirrus,boost-ind = <1000>; /* 1uH */
+ cirrus,boost-peak = <3000>; /* 3A */
+};
+
--
1.9.1
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